'Murderer' in the Bible

You people are from your father the devil, and you want to do what your father desires. He was a murderer from the beginning, and does not uphold the truth, because there is no truth in him. Whenever he lies, he speaks according to his own nature, because he is a liar and the father of lies.

But you rejected the Holy and Righteous One and asked that a man who was a murderer be released to you.

When the local people saw the creature hanging from Paul's hand, they said to one another, "No doubt this man is a murderer! Although he has escaped from the sea, Justice herself has not allowed him to live!"

But let none of you suffer as a murderer or thief or criminal or as a troublemaker.

Everyone who hates his fellow Christian is a murderer, and you know that no murderer has eternal life residing in him.